Swivel Mounts/Plates for 60 mm Cage Systems
Platform with 20 mm Vertical Height Adjustment
Independently Lockable Plates and Mounting Platform
Generous Array of Mounting Holes on Platform
The LC1A(/M) Swivel Mount is ideal for building 60 mm prism and grating-based systems, such as spectrometers, that require arbitrary angular alignment. The plates and mounting platform of the LC1A are independently lockable. To aid in alignment, there is a scribed scale with 2° increments below the pedestal. The platform has an array of threaded holes, making it easy to mount a variety of optical elements, such as prisms and gratings, as well as our PM3(/M) or PM4(/M) clamping arms. See the attached support drawing for more details.
Thorlabs' PM3(/M) and PM4(/M) Clamping Arms use a nylon-tipped setscrew to secure objects in our mounts and V-clamps. The PM3(/M) provides vertical travel of up to 0.97" (24.6 mm) and features a 0.69" (17.5 mm) long clamping arm. In contrast, the PM4(/M) provides vertical travel of up to 1.61" (40.9 mm) and features a 1.16" (29.3 mm) long clamping arm.
The clamping arm is held to the post using a flexure mechanism that locks with a 5/64" (2 mm) balldriver or hex key. The post includes a Ø0.09" (Ø2.3 mm) through hole that provides added torque when tightening down the post.
The PM3(/M) clamping arm can be used to hold 1" (25.4 mm) tall optics with the addition of a second post. Without the second post, the top surface of the clamping arm will be positioned above the top of the post, causing less-than-full engagement of the flexure mechanism.